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Finding the Fourth Proportional to 625,553.51, 938,330.36 and 152,238.86

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Solution

The fourth proportional to 625,553.51, 938,330.36 and 152,238.86 is: 228,358.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,553.51 : 938,330.36 = 152,238.86 : x
  2. Step 2: Convert to fraction form
    625,553.51/938,330.36 = 152,238.86/x
  3. Step 3: Cross multiply
    625,553.51x = 938,330.36 × 152,238.86
  4. Step 4: Simplify right side
    625,553.51x = 142,850,345,894.42
  5. Step 5: Solve for x
    x = 142,850,345,894.42/625,553.51
  6. Step 6: Final answer
    x = 228,358.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.